Roof, Exterior and Plaza Restoration
General Services Administration
System: 45,000 square feet roofing (Modified and single ply PVC)
Walls: Precast panels and coated EIFS
Plaza: Membrane and pavers
Budget: $1.7 million
- Federal courthouse tenants and operations extremely sensitive to noise and/or outside interruptions.
- Building surrounded by active plaza and public streets and sidewalks, challenging construction access.
- Project required multiple trades so coordination and construction phasing are critical to minimize impact to building operations.
The United States Courthouse Building in Shreveport, LA is a six-story structure constructed in 1990’s with a cast concrete and structural steel frame. Low-slope roofs were single ply EPDM. Wall systems consist of limestone, punched windows, polished stone panels and EIFS wall finish systems.
Initial findings indicated a failed roofing system necessitating replacement. Conley Group reviewed numerous options for replacement including modification of GSA standards to include less expensive systems. This included a two ply modified bitumen (cold process), reduction in tapered insulation requirements, re-use of lightning protection, and improvements in roof drainage with modified drain extensions.
Exterior pre-cast panels exhibited cracking and exterior sealants (walls and windows) were in poor condition. Various methods of sealant and gasket replacement were identified based on impact to building operations (interior access required).
In addition, the EIFS walls lacked required weep system. Several leak areas were identified on the plaza impacting the building interior. Excavation identified faulty construction of the waterproofing system requiring localized repair. Utilizing information from investigations, water testing and feasibility analyses. Conley Group developed design plans and construction documents for the repair, replacement and restoration of these systems according to GSA approved standards.
Construction cost estimates were developed and refined, phasing and schedules were planned in conjunction with GSA and building tenants. Providing construction administration and site management, Conley Group was able to deliver a successful project restoring the appearance and waterproofing integrity of this critical federal building.